How To Clean A Metal Roof Safely. When you clean metal, you can use light pressure if necessary, and you can use a hot water pressure washer. Even at low pressure, a power washer can seriously damage shingles.
Old metal roofs usually have a certain amount of give, so expect that. From the ground, use a broom or leaf blower to remove leaves, branches and other loose debris. Start by spraying your roof with a hose or a normal wand attachment.
And the runoff harms plants.
Clean your roof without taking proper safety precautions. The first thing to do is check the manufacturer’s advice for their recommended method of walking on that particular roof product. From the ground, use a broom or leaf blower to remove leaves, branches and other loose debris. And the runoff harms plants.